hi all... i am making a small project where i need to interface the RTC with 8051. i have done with it. and now i am want to save the time and date in EEprom AT24c16. i have already done interfacing of RTC and saving the data in eeprom... code is
void save() //save in EEPROM { start(); send_byte(0xA0); //device address aknowledge(); send_byte(0x00); //word address, Page Numbers aknowledge(); send_byte(hour); aknowledge(); send_byte(min); aknowledge(); send_byte(sec); aknowledge(); send_byte(day); aknowledge(); send_byte(month); aknowledge(); send_byte(year); aknowledge(); stop(); msdelay(10); }
but what happens here is everytime it saves the date and time at the same address... i mean it overwrites the new data. but i want something like the word address should get changed everytime before it saves the datas, to avoid the overwrite's.. how can i do it...